fix: resolve MapLibre worker rendering regression by configuring custom worker and updating geometry type filters

apps/web/src/components/MapComponent.tsx

@@ -198,7 +198,7 @@ const MapComponent: React.FC<MapProps> = ({
         id: 'los-line',
         type: 'line',
         source: 'los-source',
-        filter: ['==', '$type', 'LineString'],
+        filter: ['==', ['geometry-type'], 'LineString'],
         layout: { 'line-cap': 'round', 'line-join': 'round' },
         paint: {
           'line-color': '#f59e0b',
@@ -211,7 +211,7 @@ const MapComponent: React.FC<MapProps> = ({
         id: 'los-points',
         type: 'circle',
         source: 'los-source',
-        filter: ['==', '$type', 'Point'],
+        filter: ['==', ['geometry-type'], 'Point'],
         paint: {
           'circle-radius': 8,
           'circle-color': [
@@ -230,7 +230,7 @@ const MapComponent: React.FC<MapProps> = ({
         id: 'los-labels',
         type: 'symbol',
         source: 'los-source',
-        filter: ['==', '$type', 'Point'],
+        filter: ['==', ['geometry-type'], 'Point'],
         layout: {
           'text-field': ['get', 'label'],
           'text-size': 12,

apps/web/src/main.tsx

@@ -1,6 +1,6 @@
 import React, { useEffect, useState } from 'react'
 import ReactDOM from 'react-dom/client'
-import maplibregl from 'maplibre-gl'
+import maplibregl from './utils/maplibreWorker'
 import App from './App.tsx'
 import CompareView from './pages/CompareView'
 import IntelligenceDashboard from './pages/IntelligenceDashboard'

apps/web/src/utils/maplibreWorker.ts

@@ -0,0 +1,10 @@
+import maplibregl from 'maplibre-gl';
+import workerUrl from 'maplibre-gl/dist/maplibre-gl-csp-worker.js?url';
+
+// MapLibre 5 serializes its embedded worker from functions. Vite's class-field
+// transform injects __publicField outside those functions, leaving GeoJSON
+// workers with an undefined helper. Serve the matching standalone worker as an
+// untransformed asset in both development and production, before any map exists.
+maplibregl.setWorkerUrl(workerUrl);
+
+export default maplibregl;